Top Bitcoin exchange goes offline

Continue reading the main story How Bitcoin works Bitcoin is often referred to as a new kind of currency. But it may be best to think of its units being virtual tokens rather than physical coins or notes. However, like all currencies its value is determined by how much people are willing to exchange it for. To process Bitcoin transactions, a procedure called "mining" must take place, which involves a computer solving a difficult mathematical problem with a 64-digit solution. For each problem solved, one block of Bitcoins is processed. In addition the miner is rewarded with new Bitcoins. This provides an incentive for people to provide computer processing power to solve the problems. To compensate for the growing power of computer chips, the difficulty of the puzzles is adjusted to ensure a steady stream of about 3,600 new Bitcoins a day. There are currently about 11 millio...